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考虑土壤电离的垂直接地极冲击散流性能分析

DOI: 10.16188/j.isa.1003-8337.2015.06.019, PP. 92-96

Keywords: 接地极,有限元方法,散流特性,火花放电,电流分布

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Abstract:

准确计算接地装置的冲击散流性能以及输电线路接地极动态冲击特性是优化接地网设计的基础。为了得到垂直接地极的散流特性以及各种因素对垂直接地极散流特性的影响,本文提出基于电磁场的有限元分析方法,对垂直接地极冲击散流特性的动态物理过程进行建模和仿真,在此基础上分析了垂直接地极的冲击散流特性;并进行了垂直接地极的模拟实验,通过对比验证了方法的正确性。结果表明,垂直接地极的散流具有明显的末端效应。

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